romaine
From Longman Dictionary of Contemporary Englishromainero‧maine /rəʊˈmeɪn $ roʊ-/ noun [uncountable] American English a type of bitter-tasting lettuce with long leavesExamples from the Corpusromaine• A few leaves of crisp, cool romaine would make a good addition.• The Caesar is a generous complement of crispy romaine tossed with a mild, creamy vinaigrette.• It came piled on a white plate: a hill of young romaine lettuce served with a sliced lemon.Origin romaine (1900-2000) French romain “Roman”